Image Resizer
Resize images directly in your browser. No upload needed.
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What is this tool?
Image resizer tool changes the dimensions of images while maintaining aspect ratio. Resize images to exact pixel dimensions or percentage of original size. Supports JPEG, PNG, WebP formats. Batch resize multiple images at once. Perfect for preparing images for social media, email signatures, web layouts, and any platform with specific size requirements.
How to use
- 1
Upload image
Select the image to resize.
- 2
Set dimensions
Enter width and/or height. Lock aspect ratio to prevent distortion.
- 3
Download
Get the resized image.
Frequently Asked Questions
Should I resize in browser or with editing software?
Browser resizing is fine for quick web use and social media. For professional printing or high-quality output, use dedicated software (Photoshop, GIMP) with proper resampling algorithms. Browser tools use simpler algorithms optimized for speed over quality.
What output formats?
PNG, JPEG, WebP, and GIF.
What resolution should I resize images to?
For web use hero images 1920px wide, thumbnails 200-400px. Always resize down not up to maintain quality.